Milk-cooler



(No Model.)

1-. S. BRANDENBURG.

MILK-COOLER. No. 290,519. r x Patented Dec. 18, 1883.

k g J WITNESSES f dw w ATTORNEYS.

UNITED STATES ATENT rnicn.

ISAAC S. BRANDENBURG; OF PEORIA, ILLINOIS.

MILK-COOLER.

SPEGIFIGATION- forming part of Letters Patent No. 290,519, datedDecember18, 1883.

Application filed May 11, 1883. (No model.)

To all whom it may concern.-

Be it known that I, ISAAC S. BRANDEN- BURG, of Peoria, Peoria county,Illinois, have invented a new and Improved Milk-Cooler, of which thefollowing is a full, clear, and exact description. I

My inventionrelates to improvements in milk-coolers; and it consists inthe peculiar construction and arrangement of the parts, as hereinaftermore fully set forth, and pointed out in the claim.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure l is a sectional elevation of my improved cream'raiser, thesection being taken on the line y Fig. 2. Fig. 2 is a sectionalelevation taken on the line a: m, Fig. 1; and Fig. 3 is a perspectiveview of one of the cream-cans in which the cream is to be raised.

I place two or more cans, a, in a tank, 1), side by side, and cover eachrow of cans with a troughshaped cover, 0, inverted and placed on thehandles e of the cans for support, which handles are locatedsufficiently below the upper ends of the cans for closing thecans by awater seal when the tank is filled with water to about the height of thecans, and the said handles are also placed suificiently low to allow thewater to rise under said covers and compress the air therein to causepresscates with the open air, and the lower passage, 0, is below thewater-line of the tank. By this construction the ends of the cover arematerially strengthened around the seal, so that the metal afterconstant use will not be liable to bend or twist, as is the case when astraight flange is employed. The function, therefore, of theconstruction of the end convex chambers with double walls is to protectthe seal by rendering the ends stronger, so that they will not be soliable to bend and twist as they would be if a single straight flange,as ordinarily employed, were used. With a long cover,

such as I employ, I find straight end flanges uncertain, as they areliable to become bent or broken in use when not protected by the convexflange or very carefully handled. In removing a cover from the cans theconfined air under the cover is allowed to escape into the open airthrough the passages 0 it before the lower edge of the cover is raisedabove the water-line, thereby permitting the cover to be more easilyremoved than if a single straight flange were employed. The covers areseen red by barsf, placed on the covers and under the brackets 9,attached to the inside of the tank to prevent the covers from beinglifted by the water and air pressure under them. The tank is providedwith an overflow-pipe, j, which maintains the water at the proper levelin' the tank.

It will be seen that any vapor rising from the cans, also from thewater, will condense on the covers and flow down the sides into thewater of the tank, and thus will be prevented from dripping back intothe cans and injuring the quality of the cream, and time will beeconomized in the raising of the cream.

The overfow-pipe may be pulled out of its hole in the bottom of thewater-tank to allow the water to flow out of the tank when desired.

Having thus described my invention, 1 claim as new and desire to secureby Letters Patent- The combination of cans cahaving handles e arrangedbelow their tops, inverted semi-cylindrical-shaped covers 0, having endchambers, h, provided with passages on 0, said covers being larger thanthe tops of the cansand placed over them on said handles, holdingbars f,and water-tank b, substantially as shown and described.

ISAAC S. BRANDENBURG. Witnesses:

J AMES A. CAMERON, J All ES P. Gnovn.

